基于GIS的远程移动视频监控系统

针对实际应用,从系统架构、应用解析、实现方法等方面介绍了将GIS技术应用于远程移动视频监控系统的解决方案。提出的视频与GIS数据集成方法是一个新的技术尝试,具有应用价值。     

一种基于小波域的分形遥感影像压缩方法

解决大数据量遥感影像传输和存储问题的方案之一,是对遥感影像进行高保真快速压缩。通过对遥感影像进行小波变换产生子带频域之间的相似性,再利用分形方法对具有相似性的相邻高频子带进行编码,由高一级的子影像构造低一级的子影像,然后采用分形迭代解码和小坡变换的逆变换重建影像。实验结果表明,该方法在一定程度上能够提高压缩比,在压缩时间上比传统的分形方法有明显的缩短,并且压缩后影像信息的损失量较少,影像恢复的质量较好。     

STUDY ON ~(210) Po IN MARINE ORGANISMS IN NORTH CHINA WATERS

INTRODUCTIONWiththedevelopmentofcoastalnuclearpowerandmarinenuclearestablishments,peoplepaymoreandmoreattentiontothedistribution ,behaviorandpathwaysofsomeman maderadionuclidesinmarineenvironment.Thedischargedartificialradionuclidesoverlieabackgroundofnaturallyoccurringradionu clideswhicheitheralreadyexistedinmarineenvironmentorwasenhancedbysomeotherhumanactivi ties.Goodunderstandingofsomeman incurredradionuclides’impactsonpeopleandmarineorganismsrequiresknowledgeofsomecriticalnaturalradi…     

碳市场与电力市场机制影响下发电机组成本分析与竞争力研究

碳市场和电力市场将共同发挥市场对资源优化配置的决定性作用,对共同市场主体发电企业带来经营和发展挑战.在考虑碳成本的基础上,采用发电机组经济性影响模型,定量分析了碳市场不同发展阶段对发电机组发电成本的影响,定量评价不同能源结构投资收益经济性,以及对集中竞价市场出清顺序的影响.结果表明,随着有偿配额比例和碳价增加,碳成本占...     

显微组分大分子结构演化差异性及其动力学机制——研究进展与展望

显微组分物理化学性质是影响煤炭清洁高效利用和煤储层物性的重要因素,已经认识到决定显微组分性质的根本原因在于其大分子结构.为了揭示显微组分大分子结构演化特征及其控制因素,从显微组分大分子化学结构与物理结构、大分子结构演化的构造应力效应、煤变质全阶段大分子结构演化特征等方面,总结了国内外研究进展,分析了存在的不足.指出由于...     

Expression of the Phycoerythrin Gene of Gracilaria lemaneiformis (Rhodophyta) in E. coli and Evaluation of the Bioactivity of Recombinant PE

Phycoerythrin (PE) is one of the most important proteins involved in light capturing during photosynthesis in red algae. Its potential biological activities had gained wide concerns. In the present study, tumor cytotoxic and hydroxyl radical assay were preformed to detect the bioactivity of recombinant PE. Recombinant plasmids pGEX-PE and pBGL were transformed into E.coli BL21 to make two recombinant strains BEX (pGEX-PE) and BGL (pBGL). PE expressing in BEX (pGEX-PE) was validated by SDS-PAGE and Western blotting analysis. SDS-PAGE analysis indicated that the PE-GST fusion protein was mostly inclusion bod- ies. Specific expression of PE was confirmed by Western blotting analysis. The recombinant E. coli BEX (pGEX-PE) cells were col- lected and sonicated. The supernatants were reserved for the tumor cytotoxic experiments. The result of tumor cytotoxic assay indi- cated that the supernatants containing PE had the activity of inhibiting the growth of Hela cells and with the increase of protein con- centration, the inhibiting rate increased from 37.31% to 63.26%, which showed significant difference from the control. Hydroxyl radical scavenging effect was tested with supernatants of BEX (pGEX-PE) and BGL (pBGL) cell lysates treated with sonication and heating. For the sonication samples, the scavenging rates of the supernatants of BEX (pGEX-PE) and BGL (pBGL) cell lysates were significantly higher than the negative control BL21(pGEX-4T) (P<0.02), and the scavenging rates increased slowly following the increase of the protein content. For the heating samples, except for the 0.2 mg mL-1 BGL (pBGL) products, the scavenging effects of the supernatants of BEX (pGEX-PE) and BGL (pBGL) cell lysates were stronger than that of negative control BL21(pGEX-4T). However, the effect intensity was not positively correlated with the increase of the protein concentration. Though a partially de- creased hydroxyl radical scavenging activity was led by heating, the biological activity was still retained and conspicuous. This re- search showed that phycoerythrin protein expressing in E. coli has the potential medical and sanitarian value.     

光学探生仪研制

光学探生仪主要用于在地震等灾害造成的残垣断壁中快速、准确地寻找被困人员。因此,在研制光学探生仪时,必须充分考虑灾害救助现场的恶劣工作条件和对仪器的特殊要求。本文首先简要介绍了光学探生仪研究的有关情况,然后对光学探生仪主要部件的设计、选型和实验进行了详细研究,探讨研制先进、实用的光学探生仪的途径。这对我国探生仪研制工作具有借鉴意义。     

冀南綦村斑状石英二长岩角闪石环带结构及其地质意义

为阐释岩浆两阶段演化过程及其与铁成矿的关系,对邯邢铁矿区斑状石英二长岩中角闪石斑晶环带结构进行了成因矿物学研究.通过角闪石温度计、压力计、氧逸度计和湿度计的计算,发现岩浆在14km深处岩浆房内经过多次岩浆混合过程,其后演化的岩浆侵位到1.9 km的深度.岩浆房的温度为935～964℃,氧逸度为△NNO+0.27～△NN...     

中非赞比亚成矿带谦比希铜钴矿床钴的赋存状态与成矿规律

谦比希铜钴矿床是中非赞比亚成矿带重要的超大型铜钴矿床之一,由主矿体、西矿体和东南矿体3部分组成,赋矿层位主要为下罗安亚群敏多拉组和基特韦组,岩性包括泥质板岩、泥质石英岩、板岩、石英砂岩等.现有资料对于矿床中钴的赋存状态和含钴矿物成因的研究较为薄弱,这也直接制约了对钴矿的成因认识及今后找矿方向.本次研究聚焦谦比希矿床中的...     

采煤塌陷区生态地质环境恢复治理与可持续发展问题的探讨

扼要介绍了济宁市煤炭开发的资源状况和环境问题,提出了3种塌陷区土地复垦方法．并探讨了集发展农业资源、美化生活环境、实现经济效益为一体的塌陷区总体治理方案。通过项目投资分析,确认塌陷区治理能够成为以实现利润为目的的产业化项目。